Rapid prototype machine



FIG. 1 is a perspective view of the rapid prototype machine;

FIG. 2 is a frontal view of the rapid prototype machine;

FIG. 3 is a rear view of the rapid prototype machine;

FIG. 4 is a side view of the rapid prototype machine; and,

FIG. 5 is a top view of the rapid prototype machine.

The broken line showing is for illustrative purposes only and forms no part of the claimed design. 

The ornamental design for a rapid prototype machine, as shown and described. 